EPSG:CODE

NGVD29 height (m) to NAVD88 height (2)

EPSG:7968 → EPSG:5703

Coordinate Reference Systems

Source CRS
EPSG:7968
NGVD29 height (m)
Vertical
Target CRS
EPSG:5703
NAVD88 height
Vertical

Remarks

In the SE of this area the NGVD29 surface is 0 to 0.1m above the NAVD88 surface; in the W it is 0.6 to 0.9m below the NAVD88 surface. Interpolation in the data file may be made using either NAD27 or any of the NAD83 realizations applicable to US conus.

Frequently Asked Questions

What is the accuracy of the NGVD29 height (m) to NAVD88 height transformation?

This transformation (EPSG:7970) has an accuracy of 0.02m using the Vertical Offset by Grid Interpolation (VERTCON) method. Area of use: USA - CONUS 89°W-107°W - onshore.